Rolling-mill.



J. E. FAWELL.

ROLLING MILL. APPLICATION FILED MAR. 18, I915- RENEWED MAY 29. l9l6.

1 ,1 92,81 5. Patented July 25, 1916.

FIBZ.

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WITNESSES INVENTOR W- QHWL XM gwm mm.

JOSEPH EDWARD FAWELL, 0F PITTSBURGH, PENNSYLVANIA.

ROLLING-MILL.

Application filed March 18, 1915, Serial No. 15,395.

To all whom it may concern Be it known that I, Josnrrr ED\VARD FA- WELL,residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, a citizen of the United States, have invented ordiscovered certain new and usefulImprovements in Rolling-Mills, of whichim' provements the following is a specification.

In order to avoid the large first expense and the cost of maintenance ofa reversible two-high mill and its operating motor, re sort isfrequently had to a three-high mill. The use of the latter involves theemployment of vertically movable feed tables with reversible rollers oneach side of themill.

The invention described herein has for its object a construction of millhaving an intel-mediate roll and outer rolls arranged in such relationto the intermediate roll, that a plane coincident with the axis of thelatter and the axis of one of the outer rolls will be at such an angleto a plane coincident with the axis of the other outer roll and theintermediate roll that by turning said rolls through an arc of a circle,the respective bites of said rolls will be brought to a commonhorizontal or approximately horizontal plane, thereby permitting of theemployment of vertically stationary feed tables.

The invention is hereinafter more fully described and claimed.

In the accompanyin drawing forming a part of this specification, Figure1 is a sec tional elevation of my improved mill, the

plane of section being at right angles to the axes of the rolls; Fig. 2is a sectional view on a plane indicated by the line H TI Fig. 1; Fig. 3is a diagrammatic view illustrating the arrangement of the pinionsthrough which the rolls are driven, and Fig. i is a similar view showinga modified arrange ment of the pinions.

In the practice of my invention, the housings dows 2 and 2" for thereception of the hearing blocks 3 for the journals of the outer rolls 5and 6. These windows are preferably but not angle shown one to theother. FVhen angularly arranged as shown in Fig. 1 the windows 2 and 2connect with enlarged openings 7 in the housings and in the openings 7are arranged the bearing blocks 8 for the journals of the middle roll 9.In order to facilitate the removal of the rolls from the housing, it ispreferred to make these open- Specification of Letters Patent.

sition. ported in any suitable manner to enable 'them to be shifted, itis preferred that their 1 for the rolls are provided with win-'necessarily arranged at the Patented July 25, 191 6.

Renewed May 29, 19M;v Serial No. 100,703. v

ings 7 sutliciently large to permit of the passage of the roll bodiestherethrough.

In the construction shown, the housings with the rolls are shiftedthrough an arc of about ninety degrees to move one ofthe outer rolls andthe intermediate roll out of operative. position and the other outerroll and the intermediate roll into operative po- While the housings maybe suplower ends should be formed on the arc of a circle as shown, andrest upon rollers 10 suitably mounted on the bed of the mill. Thenecessary rotation of the housings may be effected by any suitable meanssuch for example as that shown consisting of chains or other flexiblemeans 11 connected to the housings and leading out in opposite directions to suitable means for exerting the desired pull thereon. Thehousings are held in the proper spaced relation by means of spacingblocks 12 and through bolts 13 as clearly shown in Figs. 1 and 2.

Fig. 8 shows diagrammatically an arand 6 to the pinions indicated at band 0 respectively. In lieu of the arrangement shown in Fig. 3, thepinlons may be arranged as shown in Fig. 4, the rolls 9, 5 and 6 beingconnected to the respective pinions indicated at e, f and g.

In the construction shown the rolls 6 and 9 are shown in operativeposition, and will be so rotated as indicated by arrows 'as to receivethe piece to be rolled from the table B, and deliver it onto table A.The piece is supported intermediate the rolls and the feed tables bybridges 15 which have their ends secured to the housings. After thepiece has been delivered onto the table A its feed rollersare reversed,and the housings are shifted in the direction of the arrow X therebymoving the roll 9to top position and the roll 6 to the under position.In this position the'rolls 6 and 9 will re ceive the piece from thetable A and deliver it onto the table B. It will be observed that inshifting the housings the pass or bite of the rolls 6 and 9 is broughtto the same position vertically as formerly occupied by the pass or bitebetween the ice rolls 5 and 9, and hence the tables A and B may be madevertically stationary. In order to facilitate the movement of the pieceto and from the rolls, the rollers of the feed tables are driven andadapted to be reversed.

As a bridge to support the piece intermediate of the table A and therolls 6 and 9 when in operative position would interfere with thedelivery of a piece from the rolls 5 and 9, rollers 16 are carried bythe housings to carry the piece from the table A to the rolls 6 and 9.

Any suitable means may be adapted for shifting the rolls relative one tothe other, as for example in the construction shown, wedges 17 areemployed for shifting the rolls 5 and 6.

It is characteristic of my improvement that the rolls are so mounted asto be capable of being shifted in unison relative to a common line offeed, the intermediate roll being moved to position first above and thenbelow such common line of feed, While the outer rolls do not cross suchline.

I claim herein as my' invention:

1. In a rolling mill the combination of three rolls, means for rotatingtwo of the rolls in one direction and the third roll in the oppositedirection, and means for shifting said rolls around a common center.

2. In a rolling mill the combination of three rolls, two of said rollsbeing on oppo site sides of a common line of feed, and means forshifting the other roll through an arc of a circle across such commonline of feed.

3. In a rolling mill the combination of a rotatable housing, three rollsmounted in said housings with their axes substantialh parallel with theaxis of rotation of the housings, two of the rolls being arranged inreducing relation to the third roll but with different points thereof.

4. In a rolling mill the combination of retatable housings, three rollsmounted in said housings, two of the rolls being adapted to cooperatewith the third, a plane coinciding with the axes of two of the rollsbeing at an angle to a plane coinciding with the axis of the third rolland one of the other two.

In testimony whereof, I have hereunto set my hand.

JOSEPH EDIVARD FAWELIJ.

I/Vitnesses ALICE A. TRILL, THos. B. JoYoE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

